Differentiable approximation of continuous definable maps that preserves the image

Fuente: arXiv
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Autore principale: Carbone, Antonio
Natura: Preprint
Pubblicazione: 2023
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author Carbone, Antonio
author_facet Carbone, Antonio
contents Recently Pawłucki showed that compact sets that are definable in some o-minimal structure admit triangulations of class $\mathcal{C}^p$ for each integer $p\geq 1$. In this work, we make use of these new techniques of triangulation to show that all continuous definable maps between compact definable sets can be approximated by differentiable maps without changing their image after the approximation. The argument is an interplay between o-minimal geometry and PL geometry and makes use of a `surjective definable version' of the finite simplicial approximation theorem that we prove here.
format Preprint
id arxiv_https___arxiv_org_abs_2312_10538
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Differentiable approximation of continuous definable maps that preserves the image
Carbone, Antonio
Algebraic Geometry
Logic
Recently Pawłucki showed that compact sets that are definable in some o-minimal structure admit triangulations of class $\mathcal{C}^p$ for each integer $p\geq 1$. In this work, we make use of these new techniques of triangulation to show that all continuous definable maps between compact definable sets can be approximated by differentiable maps without changing their image after the approximation. The argument is an interplay between o-minimal geometry and PL geometry and makes use of a `surjective definable version' of the finite simplicial approximation theorem that we prove here.
title Differentiable approximation of continuous definable maps that preserves the image
topic Algebraic Geometry
Logic
url https://arxiv.org/abs/2312.10538